paulb@122 | 1 | #!/usr/bin/env python |
paulb@122 | 2 | |
paulb@122 | 3 | "A very simple example application." |
paulb@122 | 4 | |
paulb@122 | 5 | import WebStack.Generic |
paulb@353 | 6 | import XSLForms.Resources.WebResources |
paulb@122 | 7 | import XSLForms.Utils |
paulb@122 | 8 | import os |
paulb@122 | 9 | |
paulb@174 | 10 | # Site map imports. |
paulb@174 | 11 | |
paulb@174 | 12 | from WebStack.Resources.ResourceMap import MapResource |
paulb@560 | 13 | from WebStack.Resources.Selectors import EncodingSelector |
paulb@174 | 14 | from WebStack.Resources.Static import DirectoryResource |
paulb@174 | 15 | |
paulb@560 | 16 | # Configuration settings. |
paulb@560 | 17 | |
paulb@560 | 18 | encoding = "utf-8" |
paulb@560 | 19 | |
paulb@122 | 20 | # Resource classes. |
paulb@122 | 21 | |
paulb@353 | 22 | class VerySimpleResource(XSLForms.Resources.WebResources.XSLFormsResource): |
paulb@122 | 23 | |
paulb@122 | 24 | "A very simple resource providing a hierarchy of editable fields." |
paulb@122 | 25 | |
paulb@122 | 26 | resource_dir = os.path.join(os.path.split(__file__)[0], "Resources") |
paulb@122 | 27 | template_resources = { |
paulb@150 | 28 | #"structure" : ("structure_template.xhtml", "structure_output.xsl") |
paulb@445 | 29 | #"structure" : ("structure_multivalue_template.xhtml", "structure_output.xsl") |
paulb@445 | 30 | "structure" : ("structure_multivalue_label_template.xhtml", "structure_output.xsl") |
paulb@122 | 31 | } |
paulb@260 | 32 | init_resources = { |
paulb@260 | 33 | #"structure" : ("structure_template.xhtml", "structure_input.xsl") |
paulb@445 | 34 | #"structure" : ("structure_multivalue_template.xhtml", "structure_input.xsl") |
paulb@445 | 35 | "structure" : ("structure_multivalue_label_template.xhtml", "structure_input.xsl") |
paulb@260 | 36 | } |
paulb@147 | 37 | transform_resources = { |
paulb@260 | 38 | "comments" : ["structure_comments.xsl"] |
paulb@147 | 39 | } |
paulb@147 | 40 | document_resources = { |
paulb@445 | 41 | #"types" : "structure_types.xml" |
paulb@445 | 42 | "types" : "structure_types_label.xml", |
paulb@445 | 43 | "translations" : "translations.xml" |
paulb@147 | 44 | } |
paulb@174 | 45 | in_page_resources = { |
paulb@514 | 46 | "comments" : ("structure", "structure_output_comments.xsl", "comment-node") |
paulb@174 | 47 | } |
paulb@122 | 48 | |
paulb@122 | 49 | def respond_to_form(self, trans, form): |
paulb@122 | 50 | |
paulb@122 | 51 | """ |
paulb@122 | 52 | Respond to a request having the given transaction 'trans' and the given |
paulb@122 | 53 | 'form' information. |
paulb@122 | 54 | """ |
paulb@122 | 55 | |
paulb@174 | 56 | in_page_resource = self.get_in_page_resource(trans) |
paulb@174 | 57 | parameters = form.get_parameters() |
paulb@122 | 58 | documents = form.get_documents() |
paulb@122 | 59 | |
paulb@122 | 60 | # Ensure the presence of a document. |
paulb@122 | 61 | |
paulb@122 | 62 | if documents.has_key("structure"): |
paulb@122 | 63 | structure = documents["structure"] |
paulb@122 | 64 | else: |
paulb@122 | 65 | structure = form.new_instance("structure") |
paulb@122 | 66 | |
paulb@122 | 67 | # Add and remove elements according to the selectors found. |
paulb@122 | 68 | |
paulb@122 | 69 | selectors = form.get_selectors() |
paulb@122 | 70 | XSLForms.Utils.remove_elements(selectors.get("remove2")) |
paulb@122 | 71 | XSLForms.Utils.add_elements(selectors.get("add2"), "subitem") |
paulb@122 | 72 | XSLForms.Utils.remove_elements(selectors.get("remove")) |
paulb@122 | 73 | XSLForms.Utils.add_elements(selectors.get("add"), "item") |
paulb@122 | 74 | |
paulb@271 | 75 | # Initialise the document, adding enumerations/ranges. |
paulb@136 | 76 | |
paulb@260 | 77 | structure_xsl = self.prepare_initialiser("structure") |
paulb@147 | 78 | types_xml = self.prepare_document("types") |
paulb@260 | 79 | structure = self.get_result([structure_xsl], structure, references={"type" : types_xml}) |
paulb@260 | 80 | |
paulb@260 | 81 | # Add the comments. |
paulb@260 | 82 | |
paulb@260 | 83 | comments_xsl_list = self.prepare_transform("comments") |
paulb@260 | 84 | structure = self.get_result(comments_xsl_list, structure) |
paulb@136 | 85 | |
paulb@122 | 86 | # Start the response. |
paulb@122 | 87 | |
paulb@560 | 88 | trans.set_content_type(WebStack.Generic.ContentType("application/xhtml+xml", encoding)) |
paulb@122 | 89 | |
paulb@122 | 90 | # Ensure that an output stylesheet exists. |
paulb@122 | 91 | |
paulb@174 | 92 | if in_page_resource in self.in_page_resources.keys(): |
paulb@514 | 93 | trans_xsl = self.prepare_fragment(in_page_resource) |
paulb@296 | 94 | stylesheet_parameters = self.prepare_parameters(parameters) |
paulb@174 | 95 | else: |
paulb@174 | 96 | trans_xsl = self.prepare_output("structure") |
paulb@296 | 97 | stylesheet_parameters = {} |
paulb@174 | 98 | |
paulb@122 | 99 | # Complete the response. |
paulb@122 | 100 | |
paulb@499 | 101 | try: |
paulb@499 | 102 | stylesheet_parameters["locale"] = trans.get_content_languages()[0] |
paulb@499 | 103 | except IndexError: |
paulb@499 | 104 | pass |
paulb@445 | 105 | self.send_output(trans, [trans_xsl], structure, stylesheet_parameters, |
paulb@445 | 106 | references={"translations" : self.prepare_document("translations")}) |
paulb@122 | 107 | |
paulb@122 | 108 | # Site map initialisation. |
paulb@122 | 109 | |
paulb@122 | 110 | def get_site(): |
paulb@122 | 111 | |
paulb@122 | 112 | "Return a simple Web site resource." |
paulb@122 | 113 | |
paulb@174 | 114 | # Get the main resource and the directory used by the application. |
paulb@174 | 115 | |
paulb@174 | 116 | very_simple_resource = VerySimpleResource() |
paulb@174 | 117 | directory = very_simple_resource.resource_dir |
paulb@174 | 118 | |
paulb@174 | 119 | # Make a simple Web site. |
paulb@174 | 120 | |
paulb@174 | 121 | resource = MapResource({ |
paulb@174 | 122 | # Static resources: |
paulb@174 | 123 | "scripts" : DirectoryResource(os.path.join(directory, "scripts"), {"js" : "text/javascript"}), |
paulb@181 | 124 | # Main page and in-page resources: |
paulb@181 | 125 | None : very_simple_resource |
paulb@174 | 126 | }) |
paulb@174 | 127 | |
paulb@560 | 128 | return EncodingSelector(resource, encoding) |
paulb@122 | 129 | |
paulb@514 | 130 | # Resource preparation ahead of time - useful for making installations. |
paulb@514 | 131 | |
paulb@514 | 132 | def prepare_resources(): |
paulb@514 | 133 | for cls in [VerySimpleResource]: |
paulb@514 | 134 | XSLForms.Resources.WebResources.prepare_resources(cls) |
paulb@514 | 135 | |
paulb@122 | 136 | # vim: tabstop=4 expandtab shiftwidth=4 |